Recent Blog Posts

IIAR 6 Appendix B Pressure Vessels Checklist | Part 4

October 17th, 2023

Part 4: This is a continuation of our blog series explaining how to perform an IIAR 6 Appendix B inspection of an ammonia pressure vessel. The second page of the checklist contains twenty questions that should be answered ‘yes’, ‘no’, or ‘not applicable’. The wording of each question is such that a ‘yes’ answer is […]

IIAR 6 Appendix B Pressure Vessels Checklist | Part 3

October 3rd, 2023

Part 3: This is a continuation of our blog series explaining how to perform an IIAR 6 Appendix B inspection of an ammonia pressure vessel. The final information required on the first page of the checklist pertains to the vessel relief valves. The manufacturer, model, pressure setting, and capacity can be obtained from the relief […]

IIAR 6 Appendix B Pressure Vessels Checklist | Part 2

September 19th, 2023

Part 2: This is a continuation of our blog series explaining how to perform an IIAR 6 Appendix B inspection of an ammonia pressure vessel. Page 1 of the pressure vessel checklist requires the inspector to indicate the application of the vessel. For example, if a high pressure receiver was being inspected, the corresponding box […]

Ammonia Week in Review | September 15, 2023

September 15th, 2023

Training Is The Focus in this week’s edition of the Ammonia Week in Review… New Program Teaches Ammonia Refrigeration Technology – Alaska Sea Grant is partnering with the consulting firm iWorkWise and the Alaska Research Consortium (ARC) to offer training in Kodiak toward becoming a professional ammonia refrigeration operator. […keep reading] Video: Compressor Inspection Checklist – IIAR 6 […]

IIAR 6 Appendix B Pressure Vessels Checklist | Part 1

September 5th, 2023

Part 1: This is the first in a series of blogs explaining how to perform an IIAR 6 Appendix B inspection of an ammonia pressure vessel. The checklists contained in IIAR 6 Appendix B are derived from a legacy document named IIAR Bulletin No. 109. For years, the Bulletin 109 checklists, or B109s, served as […]